Trimerization and orbital ordering in Ba1-xSrx V13 O18

Tomomasa Kajita, Y. Obata, Y. Kakesu, Y. Imai, Y. Shmizu, M. Itoh, H. Kuwahara, Takuro Katsufuji

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    We studied the physical properties of Ba1-xSrxV13O18 single crystals, which exhibit three different phases caused by the orbital and charge degrees of freedom in V t2g states. We found from the magnetic susceptibility and the NMR measurement that the low-temperature phase of this series of compounds is characterized by the spin-singlet state. We also found from the electrical resistivity and optical conductivity spectra that these compounds become heavily anisotropic in the low-temperature phase with V trimerization, indicating that the orbital ordering of V t2g states causes the anisotropy of the electronic structure of this series of compounds.

    Original languageEnglish
    Article number245126
    JournalPhysical Review B
    Issue number24
    Publication statusPublished - 2017 Dec 21

    ASJC Scopus subject areas

    • Electronic, Optical and Magnetic Materials
    • Condensed Matter Physics

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    Kajita, T., Obata, Y., Kakesu, Y., Imai, Y., Shmizu, Y., Itoh, M., Kuwahara, H., & Katsufuji, T. (2017). Trimerization and orbital ordering in Ba1-xSrx V13 O18. Physical Review B, 96(24), [245126].